Firewood storage rack



FIG. 1 is a perspective view of a firewood storage rack showing my new design;

FIG. 2 is a front elevational view thereof, the opposite side being identical;

FIG. 3 is a top view thereof;

FIG. 4 is a side elevational view thereof, the opposite side being identical; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for a firewood storage rack, as shown and described. 